October 2025 Issue
Feature Articles
High-Power Ultrafast Moves into the Terahertz
Advances in ultrafast laser–driven secondary sources are pushing terahertz science to new limits with powerful new tools.
by Tim Vogel, Robin Löscher and Clara Saraceno3D-Printed Optics and Photonics: Unlocking the Third Dimension
The integration of 3D-printing technologies into optics and photonics has revolutionized the design and fabrication of complex optical components.
by Hongwei Gao and Dawn T.H. TanDepartments and Columns
Superposition, Entanglement and Schrödinger’s Cat
Nobel Laureate David Wineland discusses his work in quantum science and his thoughts on the future of the field.
Also in this Issue
30, 20, and 10 Years Ago in OPN
Adaptive wavefront shaping with liquid crystals; ecology and applications of flow-stimulated bioluminescence; hyperspectral imaging for safety and security

![Manual probe system with needles for test of semiconductor on silicon wafer. [A. Morozov / Getty]](https://opnmedia.blob.core.windows.net/$web/opn/media/images/articles/2025/1125/departments/202511-cover-web.jpg?ext=.jpg)
